Hoya (Wax Plant)

Hoya carnosa · Houseplant

A trailing or climbing plant with thick, waxy leaves and clusters of star-shaped, often scented flowers. It tolerates some neglect and prefers to dry out between waterings. Mature, slightly root-bound plants flower best.

Care at a glance

Light

Bright indirect light; some gentle direct sun

Water

When the soil is mostly dry, every 1–2 weeks (estimated)

Soil

Chunky, airy mix: potting soil with bark and perlite

Temperature

Best 60–85 °F; keep above 50 °F

Pot size

Snug; only 1 in wider than the roots

Container

Pot with drainage; terracotta helps soil dry

Growth

Slow to moderate; first flowers often after 2–3 years (estimated)

Lifespan

Perennial; many years indoors

When?

Repot only in spring or summer and only when roots fill the pot completely. Expect most flowering from late spring to autumn (estimated).

Step by step

1. Place in bright light without harsh midday sun; light drives flowering.
2. Water deeply, then let the mix dry most of the way.
3. Water less in winter when growth slows.
4. Give vines a hoop, trellis or hanging basket to grow along.
5. Feed monthly in spring and summer with a balanced or bloom fertilizer.
6. Do not cut off old flower spurs; new flowers form on the same spurs.
7. Avoid moving the plant while it is in bud; buds may drop.
8. Take stem cuttings with 2–3 nodes to root in water or moist mix.

Common problems

Pets

Hoya carnosa is listed as non-toxic to cats and dogs. Chewing any plant can still cause mild stomach upset. If in doubt, ask your vet.

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